ChoiceVendor business-to-business vendor reviews: similar to FYIndOut.com but with a different business model—rather than generating revenue from providers, ChoiceVendor’s revenue plan is to “offer certain features by subscription to users who are seeking vendors.&# Since the early days of the Internet, b2b purchasing has seemed like an area ripe for the efficiency and transparency improvements the web could bring. The theory has been that b2b buying processes are labor-intensive and inefficient, with heavy reliance on phone calls, emails and even face to face meetings.